Thursday, October 27 th

Thursday, October 27th • Please take out your homework and

complete warm up• Did you write down your homework?

1. Order from least to greatest 2.5, 2.51, 2

2. Change to decimal form

Warm Up3449

Corny Joke of the Day

Why didn’t the mummy have any

friends?

He was too wrapped up in himself

Schedule for the WeekThursday: adding and

subtracting decimal integersFriday: Adding and subtracting fraction integers

Tuesday: Checkpoint

Fraction Test Congrats to test Toppers

Retest?O 75 and above you will complete a packet

O74 and below you are eligible for a reteach

OTuesday 11/1 will be the reteach

OWednesday 11/2 will be the retest

Retest QualificationsO All Homework must from unit must be complete before you retake the test

ORetest formORetake packet must be complete before you retake the test

You need to tell me by

Tomorrow!!!

Homework Answers

Around the World

Question of the Day?!?!How do add and subtract decimals that are positive and negative?!?!

Use zero as a placeholder so thatboth numbers have the same numberof digits after their decimal points.

Add each column just as you wouldadd integers.

Line up the decimal points.

70.8

66.8+ 4.0

Decimal Review

Negative/Positive Review Same sign add and keepDifferent sign subtractTake the sign of the farther numberThen it'll be exact! Change the minus to a plusChange the sign of nextThen all you do is add them upAs if it were a plus!

Add. Estimate to check whether each answer is reasonable.

4.55 + 11.3

Line up the decimal points.Use zero as a placeholder.

4.55+ 11.30

15.85 Add.

Estimate5 + 11 = 16 15.85 is a reasonable answer.

Add. Estimate to check whether each answer is is reasonable.

6.44 + 16

Line up the decimal points.Use zeros as placeholders.

6.44+ 16.00

22.44 Add.

Estimate6 + 16 = 22 22.44 is a reasonable answer.

Add. Estimate to check whether each answer is reasonable.

–8.33 + (–10.972) –8.33 + (–10.972) Think: 8.33 + 10.972.

Line up the decimal points.

Add.–8.33 + (–10.972) = –19.302

Use the sign of the two numbers.

8.330+10.972 Use zero as a placeholder.

19.302

Estimate–8 + (–11) = –19 –19.302 is a reasonable

answer.

Add. Estimate to check whether each answer is is reasonable.

6.78 + 13.2

Line up the decimal points.Use zero as a placeholder.

6.78+ 13.20

19.98 Add.

Estimate7 + 13 = 20 19.98 is a reasonable answer.

Add. Estimate to check whether each answer is reasonable.

–7.89 + (–13.852) –7.89 + (–13.852) Think: 7.89+ 13.852.

Line up the decimal points.

Add.–7.89 + (–13.852) = –21.742

Use the sign of the two numbers.

7.890+13.852 Use zero as a placeholder.

21.742

Estimate–8 + (–14) = –22 –21.742 is a reasonable

answer.

2.56; Estimate: 7 – 4 = 3

21.25; Estimate: 7 + 14 = 21

–27.66; Estimate: -8 + (-19) = -27

4. 24 – 3.820.2; Estimate: 24 - 4 = 20

Add. Estimate to check whether your answer is reasonable.1. 6.98 + 14.27 2. –8.46 + (–19.2)

3. 6.72 – 4.16

Subtract. Estimate to check whether your answer is reasonable.

Group Work